Add "previewing on hover" support for password field.

components/autofill/content/renderer/form_autofill_util.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/autofill/content/renderer/form_autofill_util.h"
 
 #include <map>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 1027 matching lines @@
 
   ForEachMatchingFormField(form_element,
                            element,
                            form,
                            FILTER_ALL_NON_EDITIABLE_ELEMENTS,
                            false, /* dont force override */
                            &PreviewFormField);
 }
 
 bool ClearPreviewedFormWithElement(const WebFormControlElement& element,
-                                   bool was_autofilled) {
+                                   bool was_autofilled,
+                                   bool was_password_autofilled) {
   WebFormElement form_element = element.form();
   if (form_element.isNull())
     return false;
 
   std::vector<WebFormControlElement> control_elements;
-  ExtractAutofillableElements(form_element, REQUIRE_AUTOCOMPLETE,
-                              &control_elements);
+  ExtractAutofillableElements(form_element, REQUIRE_NONE, &control_elements);
   for (size_t i = 0; i < control_elements.size(); ++i) {
     // There might be unrelated elements in this form which have already been
     // auto-filled.  For example, the user might have already filled the address
     // part of a form and now be dealing with the credit card section.  We only
     // want to reset the auto-filled status for fields that were previewed.
     WebFormControlElement control_element = control_elements[i];
 
     // Only text input, textarea and select elements can be previewed.
     WebInputElement* input_element = toWebInputElement(&control_element);
     if (!IsTextInput(input_element) &&
@@ skipping 20 matching lines @@
         IsTextAreaElement(control_element)) {
       control_element.setSuggestedValue(WebString());
       bool is_initiating_node = (element == control_element);
       if (is_initiating_node) {
         control_element.setAutofilled(was_autofilled);
         // Clearing the suggested value in the focused node (above) can cause
         // selection to be lost. We force selection range to restore the text
         // cursor.
         int length = control_element.value().length();
         control_element.setSelectionRange(length, length);
+      } else if (input_element->isPasswordField()) {
+        input_element->setAutofilled(was_password_autofilled);
       } else {
         control_element.setAutofilled(false);
       }
     } else if (IsSelectElement(control_element)) {
       control_element.setSuggestedValue(WebString());
       control_element.setAutofilled(false);
     }
   }
 
   return true;
@@ skipping 72 matching lines @@
 
 gfx::RectF GetScaledBoundingBox(float scale, WebFormControlElement* element) {
   gfx::Rect bounding_box(element->boundsInViewportSpace());
   return gfx::RectF(bounding_box.x() * scale,
                     bounding_box.y() * scale,
                     bounding_box.width() * scale,
                     bounding_box.height() * scale);
 }
 
 }  // namespace autofill